The four 5/16-18 socket head bolts provided in the kit should be torqued to 15-21 ft/lbs to ensure a proper seal against the bearing head without damaging the gasket interface

the Robertshaw 110-504 cannot be reset and must be replaced to restore pilot and burner function

This natural gas control valve is designed to manage precise manifold pressure

ensuring seamless integration into existing Barber Colman damper assemblies

it prevents the ignition sequence from proceeding

Lennox 42W35 TXV 322055-301 The four 5/16-18 socket headThe Lennox 42W35 is a professional grade R 410A thermostatic expansion valve (TXV) engineered for high precision refrigerant metering in residential and light commercial cooling systems. This OEM Lennox 100679 22 replacement features a 30 inch capillary tube designed to maintain consistent superheat across varying thermal loads, effectively preventing evaporator flooding and protecting the compressor from liquid slugging. With connection